The peptide periodic table.

Browse 61 peptides by family, evidence tier, and FDA status. From the GLP-1 agonists reshaping obesity medicine to the bioregulators studied for four decades in Saint Petersburg, every tile links to a research-first explainer.

Browse the table Start with the basics
polypeptide
61 peptides
9 families
Glu Gly Phe Ser Asp

A peptide ribbon: amino acid residues linked head-to-tail. From this scaffold come 61 molecules with very different jobs.

Search or tap a family to expand

Each tile is a peptide. The bar across the top is its family color. Click any tile to read the full page.

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Every page traces back to the literature

Mechanism, trial evidence, and safety context are sourced from peer-reviewed papers and clinicaltrials.gov, with each claim tagged by tier.

61
peptides covered, from semaglutide to amlexanox
16
families grouped by mechanism, not marketing
19
paid 12-unit mastery courses for the most-studied peptides
5
evidence tiers used to grade every therapeutic claim

Peptides A-Z questions

Peptides A-Z is a research-first peptide directory that groups 61 peptide and peptide-adjacent compounds by family, evidence tier, FDA status, and course availability.

Entries with tier 1 or tier 2 labels generally have the strongest human evidence, such as approved GLP-1 and endocrine peptides. Animal-only, cell-line, or single-lab findings are labeled separately.

No. Peptides Academy is educational only. It does not sell, prescribe, dispense, or recommend compounds.

Use the evidence tier to separate phase 3 or meta-analysis evidence from smaller trials, observational data, animal models, and cell-line mechanisms before trusting a claim.

No. A few longevity-related molecules, such as NAD+, NMN, and spermidine, are included because readers compare them with peptide topics; their individual pages note the distinction.

Start with the free peptide foundations modules, then use this directory to compare mechanisms, safety context, FDA status, and evidence strength before reading a specific peptide page.

Want a deep dive?

Most of Peptides Academy is mostly free. Every peptide above has a free explainer, and 19 of them have a paid 12-unit mastery course with quizzes, references, and a certificate.

See pricing Start free foundations

Not medical advice

Peptides Academy is an educational resource. We do not sell, prescribe, dispense, or recommend any compound. Several entries on this page (such as NAD+, NMN, and spermidine) are longevity-related molecules studied alongside peptides but are not themselves peptides; their pages note that distinction. Always consult a qualified clinician before considering any of these compounds.